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soldi70 [24.7K]
3 years ago
11

Which of the following graphs shows the preimage P(x)=x^2 and the image I(x)=P(1/3x)?

Mathematics
2 answers:
Ksju [112]3 years ago
7 0

Answer:

The picture with the widest graph in red

Step-by-step explanation:

The graph P(x) is the parent graph for all quadratic functions. It has a vertex of (0,0) and has the following points:

x      f(x)

-2      4

-1       1

0       0

1         1

2       4

The image of l(x) = P(1/3x) changes the points of the function to

x      f(x)

-2/3      4/9

-1/3        1/9

0       0

1/3        1/9

2/3       4/9

This makes the graph much wider. The graph with the widest red graph is the graph.

Setler [38]3 years ago
6 0

Answer:

(See explanation and attachment below)

Step-by-step explanation:

The image is equal to:

I(x) = \left(\frac{1}{3}\cdot x \right)^{2}

I(x) = \frac{1}{9}\cdot x^{2}

Which means that I(x) = \frac{1}{9}\cdot P(x), that is, a scale factor is applied to preimage in order to diminish growth rate of parabola at same values of x.

Some values of P(x) and I(x) are presented below:

    x                    P(x)                I(x)

    0                     0                   0

     1                     1                   1/9

     2                    4                  4/9

     3                    9                    1

The following image corresponds to both functions.

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Ellen makes and sells bookmarks. She graphs the number of bookmarks sold compared to the total money earned. What is the rate of
VashaNatasha [74]

IfIf she graphs the number of bookmarks sold compared to the total money earned. The rate of change for the function graphed to the left is: 5/2.

<h3>Rate of change</h3>

Based on the graph the coordinate are:

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Using slope formula to find the rate of change Slope=y2-y1/x2-x1

Hence,

(x1-y1)=(4,0) & (x2 -y2)= (8,10)

Let plug in the formula

Slope=10-0/8-4

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Slope=5/2

Therefore If she graphs the number of bookmarks sold compared to the total money earned. The rate of change for the function graphed to the left is: 5/2.

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4 0
1 year ago
There are 15 pieces of fruit in a bowl and 6 of them are apples. What percentage of the pieces of fruit in the bowl are apples?
zavuch27 [327]

Answer:

40%

Step-by-step explanation:

Total amount is 15

6 out of the 15 amount are apples

Thus, 6/15 x 100 = 40%

Or

You could ask yourself, what number do I multiply by 15 to get to 100?

Then, multiply the top (numerator) by it.

The value of the numerator will give you the final % (percentage) due to percentage being out of 100.

Hope this helps!

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3 years ago
An artist is designing a kite like the one show below. Calculate the area to determine how much material she will need to create
neonofarm [45]

Answer:

The answer is 161.5

Step-by-step explanation:

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Travka [436]

Answer:

(9)(m)

Step By Step Explanation:

9m is multiplying. So you need to find the one that deals with multiplication.

m-9 is subtraction

9/m is division

9+m is addition

(9)(m) is multiplication

Hope this helps :)

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